日粮中添加双活性包被牛至精油对奶牛生产性能的影响OA
Effects of Adding Dual-active Coated Oregano Essential Oil to the Diet on Dairy Cow Production Performance
[目的]为探究双活性包被牛至精油在规模化奶牛养殖中的应用效果.[方法]选取宁夏、新疆2 个规模奶牛场的荷斯坦牛为研究对象,设置50 g/头·d的添加剂量,通过对比试验分析该添加剂对奶牛生产性能、饲料利用效率、养殖成本及经济效益的影响.[结果]宁夏奶牛场采用自身前后对照试验,t检验分析结果表明,添加双活性包被牛至精油可显著提升奶牛后期产奶量,试验15～21 d奶牛日产奶量极显著提升0.93 kg,全周期产奶量提升0.53 kg;饲料转化率显著提升0.09,同时公斤奶成本显著降低0.02 元.新疆奶牛场因试验牛群初始基线数据不均衡,采用指标变化量Δ进行校正分析,结果显示,添加剂可有效改善奶牛采食性能,提升全周期干物质采食量,试验后期产奶增益逐步凸显;经济效益方面,添加该精油可实现单头奶牛日均增收1.19 元,且乳脂率、乳蛋白率等乳品质指标呈小幅提升趋势.[结论]双活性包被牛至精油可优化奶牛消化道消化、提升饲料利用效率与泌乳性能,有效降低养殖单产成本、提高养殖经济效益,兼具安全性与实用性,适合在规模化奶牛养殖场推广应用,可为奶牛养殖绿色提质增效提供技术参考.
[Objective]To investigate the application effects of dual-active coated oregano essential oil in large-scale dairy farming.[Method]Holstein cows from two large-scale dairy farms in Ningxia and Xinjiang were selected as research subjects,and a dosage of 50 g/head/day was administered.The effects of this additive on dairy cow production performance,feed utilization efficiency,farming costs,and economic benefits were analyzed through comparative trials.[Result]On the Ningxia dairy farm,a self-controlled before-after trial was conducted,and the results of t-test analysis showed that the addition of dual-active coated oregano essential oil significantly improved the late-stage milk yield of dairy cows.During days 15-21 of the trial,the daily milk yield per cow increased extremely significantly by 0.93 kg,and the full-cycle milk yield increased by 0.53 kg;feed conversion rate significantly increased by 0.09,while the cost per kilogram of milk significantly decreased by 0.02 CNY.On the Xinjiang dairy farm,due to the unbalanced baseline data of the initial experimental herds,the indicator change value(Δ)was used for correction analysis.The results showed that the additive effectively improved the feed intake performance of dairy cows and increased the full-cycle dry matter intake,with the milk production gains becoming progressively evident in the late stage of the trial.In terms of economic benefits,the addition of this essential oil achieved an average daily income increase of 1.19 CNY per cow,and milk quality indicators such as milk fat percentage and milk protein percentage showed a slight upward trend.[Conclusion]Dual-active coated oregano essential oil can optimize digestive function in dairy cows,improve feed utilization efficiency and lactation performance,effectively reduce unit production costs,and enhance farming economic benefits.It is both safe and practical,making it suitable for promotion and application in large-scale dairy farms,and can provide a technical reference for green,high-quality,and efficient dairy farming.
韩萌;贾保京;韩志熠;李晓成;甄玉国
中国农业科学院农业信息研究所,北京 100081宁夏反刍种性研究科技有限公司,宁夏 银川 750006宁夏博瑞科技有限公司,宁夏 银川 750006宁夏博瑞科技有限公司,宁夏 银川 750006吉林农业大学动物科学技术学院,吉林 长春 130025
牛至精油奶牛养殖生产性能经济效益双活性包被
oregano essential oildairy cattle farmingproduction performanceeconomic benefitsdual-active coating
《中国乳业》 2026 (7)
2-9,8
农业农村部政府购买服务(21260032)
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